public class JavaIfElseDoubleSentence {
    public static void main(String args[]) {
        int x = 30;

        if(x == 10) {
            System.out.print("Value of X is 10");
        } else if(x == 20) {
            System.out.print("Value of X is 20");
        } else if(x == 30){
            System.out.print("Value of X is 30");
        } else {
            System.out.print("这是else语句");
        }
    }
}